APERT Antonyms

• not open or affording passage or access

• (set theory) of an interval that contains both its endpoints

• not open

• used especially of mouth or eyes

• requiring union membership

• with shutters closed

• not open to the general public

• not having an open mind

• blocked against entry

• hidden on any grounds for any motive

• not accessible to view

• entrusted with private information and the confidence of another

• (of information) given in confidence or in secret

• denoting confidence or intimacy

• the level of official classification for documents next above restricted and below secret; available only to persons authorized to see documents so classified

• not accessible to view

• designed to elude detection

• difficult to find

• shut off to passage or view or hindered from action

• confined to particular persons or groups or providing privacy

• an enlisted man of the lowest rank in the Army or Marines

• concerning things deeply private and personal

• concerning one person exclusively

• not expressed

• established irrevocably

• closed or secured with or as if with a seal

• undisclosed for the time being

• determined irrevocably

• apply a non-porous coating to something so as to ensure it is impervious

• covered with a waterproof coating

• (of walls) covered with a coat of plaster

• not open

• used especially of mouth or eyes

• move so that an opening or passage is obstructed; make shut

• become closed

• prevent from entering; shut out

• not clearly expressed or understood

• marked by difficulty of style or expression

• difficult to find

• not famous or acclaimed

• not drawing attention

• remote and separate physically or socially

• make less visible or unclear

• make unclear, indistinct, or blurred

• make unintelligible or unclear

• reduce a vowel to a neutral one, such as a schwa

• make undecipherable or imperceptible by obscuring or concealing